173 



Place of Observation. 



Newcastle 



Carlisle 



Penrith 



Croft , 



Lazenby 



Whitby , 



N. Allerton 



Osmotherley ..... 



Hambleton 



Scarborough 



Thirsk 



Helmsley , 



Craike 



Malton 



York 



Flamborough.... 



Doncaster 



Harrogate 



Sheffield 



Pocklington ..... 



Arras 



Selby , 



Hull 



Skipton 



Settle 



Lancaster 



K. Lonsdale 



Horton , 



Litton , 



Gearstones ..... 

 Birkenhead .... 

 Calderstone ..... 



Lincoln 



Driffield (1853)., 



N. or 8. of 



centre of 



area in 



geog. miles. 



h 



+ 52 

 + 48 

 + 34 

 + 22 

 + 27 

 + 23 

 4- 14 

 + 16 

 + 16 

 + 11 

 + 8 

 + 9 

 + 4 

 + 2 



— 8 

 + 2 



— 35 



— 7 



— 44 



— 10 



— 14 



— 20 



— 21 



— 8 



— 1 



— 3 

 + 6 

 + 3 

 + 4 

 + 7 



— 32 



— 33 



— 53 



— 4 



E. or W, of 



centre of 



area in 



geog. miles. 



Observed 



Intensity 



(Mean=9654) 



a 



+ 4 

 + 49 

 + 44 



+ 1 



— 17 



— 32 



— 2 



— 7 



— 9 



— 39 



— 6 



— 15 



— 14 



— 25 



— 15 



— 48 



— 14 







— 25 



— 32 



— 15 



— 41 



+ 19 

 + 28 

 + 45 

 + 38 

 + 28 

 + 24 

 + 29 

 + 52 

 + 48 



— 33 



— 38 



9694 

 9719 

 9710 

 9664 

 9672 

 9659 

 9676 

 9660 

 9663 

 9649 

 9688 

 9657 

 9667 

 9623 

 9652 

 9604 

 9637 

 9696 

 9632 

 9652 

 9630 

 9634 

 9627 

 9659 

 9687 

 9670 

 9644 

 9632 

 9652 

 9645 

 9658 

 9616 

 9596 

 9613 



Difference 



of Intensity 



from the 



Mean. 



C 



+ 40 

 + G5 



+ 5e 



+ 10 

 + 18 

 + 5 

 + 22 

 + 6 

 + 9 



— 14 

 + 34 

 + 3 

 + 13 



— 31 



— 2 



— 50 



— 17 

 + 42 



— 22 



— 2 



— 24 



— 20 



— 27 

 + 5 

 + 33 

 + 16 



— 10 



— 22 



— 2 



— 9 

 + 4 



— 38 



— 58 



— 41 



